What Should You Know About Each Other Before You Move In Together?

Anyone who might someday live with me has a bit of an advantage: 400+ posts full of my bad habits, hang-ups, and obsessions. But what about the rest of us? What do you recommend knowing about each other before you move in together?

But in all seriousness, here's something I've learned: the things about you that bugged past roommates, whether romantic or platonic, will probably not bother future roommates. The things we think of as annoying habits might not even be noticed, or will perhaps even be celebrated! The flip side of this is that at 32 years of age, it will be gently pointed out to you that you never, ever put the lid on things all the way. Who knew?! There's that ideal balance between compromise/self-improvement and acceptance/self-acceptance. I can start putting the lids on things (at least I hope I can), but if I had to give up my late-night fashion blog-reading frivolity? Well, I wouldn't be me.

What do you recommend couples (and friends) know about each other before they move in together?